I've got a broken screen (black and unresponsive to any touch) and I bought a USB C OTG Adapter to see if I could test the phone and get data off. I've been able to turn off alarms and see the lockscreen and use the mouse/keyboard but I cannot unlock the phone. It seems that Huawei have put in an extra security feature to freeze the mouse after you slide to unlock. The screen goes blurry and the mouse stops responding and it sometimes shows the keypad for a half a second but it won't let you enter it. I've tried keyboard and talking to their tech support. I don't know if its worth repairing the screen...I'll take it to their service centre today and see what they say.
Anyone else know of a way round this problem without factory resetting?